We often speak of the many benefits of choosing a modular building over a more traditional building. Condensation can be a concern for many; therefore it is important to note that the layers in a modern factory-manufactured building will generally be more airtight, better insulated and will contain materials and layers which are more breathable than a traditional building. In this blog post, we will take a look at managing heat, air and moisture movement in modular buildings.
How Does Condensation Arise?
There are two different types of condensation, as it can arise in different fashions. The first is interstitial condensation, which falls between the layers of a building. This type of condensation is caused by warm air getting through the layers and hitting cold surfaces; dew is then formed.
It is known that within traditional construction, interstitial condensation in buildings is less able to cause damage to the structure as water forming on a brick will not cause structural damage. Whereas with a modular building, moisture forming on a light gauge steel or timber frame could lead to corrosion or rotting of the structural frame and ultimately failure.
The second form of condensation arises internally on the face of the interior of a room. We have all seen kitchen and bathroom windows steam up when we are cooking or showering. Without an extractor fan or more breathable building materials, the consequence of this is mould growing, which affects people’s living standards and health.
The risk of condensation in buildings can be reduced by using breathable materials and lessening instances of cold bridging. In a traditional building, it’s not as easy to start from scratch as it is when constructing a modular building.
Managing Heat, Air and Moisture Movement in Modular Buildings
Non-traditional, factory manufactured buildings tend to be made up of several more layers than a traditional build which is either solid wall or brick cavity block construction. Layers in a factory-manufactured building will generally be more airtight, better insulated and will contain materials and layers which are breathable. You should aspire to have a building that will let moisture out but will not allow moisture back in, and a modular building can help to do just that.
Why Airtightness is Crucial and Achievable with Modular Building Design
On top of the consideration of condensation, a more airtight, modular building will also be much more energy-efficient. Air leakage through cracks, gaps, holes and improperly sealed elements such as doors and windows can cause a significant reduction in energy efficiency. That is why it is so important that condensation is accounted for within the overall design of your modular building.
We have over 40 years of experience in providing businesses, schools and healthcare companies with a range of bespoke buildings. We offer a range of building types, from modular and portable to prefabricated and jackleg – ensuring we can meet the exact requirements of every single client.
Each material layer must be installed properly since the consequences of condensation can be catastrophic. We can assure you that all of our buildings are produced in our ISO-approved workshop in St Helens, where our expert team can inspect and perfect the smallest of details of each project, including ensuring that the right materials are used to create an energy-efficient, airtight building for you.
We relish the opportunity to sit down with a client and discuss their requirements. If you would like to find out more then please do contact our team or call us on 01744 851958.
Published: Sep 18 2020 in Building Types